\begin{table}%t4
\caption{Important parameters for the simulations.}\label
{tab:variedparameters}
%%\centerline

 {\begin{tabular}{ll}
\hline\hline
Feature & Values\\
\hline
Type I migration efficiency factor $\f1$  & \textit{0.001}, 0.01, 0.1, 1 \\
Viscosity parameter $\alpha$ &  0.001,  0.005, \textit{0.007}, 0.01  \\ 
Initial gas disk profile $\Sigma(a,t=0)$ & $\propto a^{-3/2}$\\
Rockline included & yes, \textit{no}\\
Iceline included & \textit{yes}\\
Photoevaporation included & \textit{yes}, no \\
$f_{\rm D/G,\odot}$ & 0.016, 0.02 \textit{0.04}, 0.05\\
Distribution for $\sigmanorm$ & Taurus, \textit{Ophiuchus} \\
Host star mass & \textit{1} $\msun$\\
Initial embryo mass $\membstart$ &0.1, 0.3, \textit{0.6} $\mearth$\\
\hline
\end{tabular}}
\medskip
If several parameters were tested, the value for the nominal case which gives the best results in the statistical analysis is printed in italic letters.
\end{table}